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Level Switch Manufacturers and Suppliers

IQS Directory is a top industrial directory listing of leading industrial level switch manufacturers and suppliers. Access our comprehensive index to review and source level switch manufacturers with preview ads and detailed product descriptions. These level switch companies can design, engineer and manufacture level switches to your specifications and application need. A quick and easy to use request for quote form is provided for you to contact these level switch manufacturers and suppliers. Each company has detailed profile information, locations, phone number, website links, product videos and product information defined. Read customer reviews and product specific news articles. We are the right resource for your information requirement whether its for a manufacturer of industrial level switches, level switch resources, level switch products.

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  • One Unusual Use for A High Level Switch

    Most factories and other manufacturing industries use level switches to monitor the level of liquids in containers inside the factory. The switches are ideal for preventing the overflow of volatile liquids and can also warn the factory when the levels inside the container get too low. These tiny switches are a highly useful part of many factories' safety and can help prevent many headaches and expenses in factories all over the world. The high level switch, however, is even more versatile than the average level switch. The high level switch...

  • 4 Uses for Chamber Level Switches

    Chambered level switches are a type of level sensor that helps measure the amount of liquid inside a container. The switches can also alert the factory workers to when the levels in the containers are too high or too low, preventing dangerous accidents in the factory. Because of their effective use and safety additions, chambered level switches have a variety of applications in all kinds of manufacturing industries. Below you can find a list of applications for standard chamber level switches: Food preparation: The enclosed nature of a chambered switch...

  • Features of a Capacitance Level Sensor

    A capacitance level sensor is one of the two types of proximity level switches (the other is inductive). Capacitance sensors detect both metallic and non-metallic targets, which make them highly versatile for many different applications. Capacitance sensors also have a wide range of sensing, which provides many benefits to the user. Most capacitance sensors have a few issues that make then unsuitable to use in every level-sensing application. One difficulty with the sensor is that it is difficult to shield. This makes the sensor nearly impossible to use in flush-mounted...

  • Level Switches? Level Switches.

    by Michael Shade, IQS Editor It may not occur to many people that somewhere, right at this moment, a level switch in a little metal tube is measuring the conductivity of an alternating current through sludge in order to determine its level. This doesn't occur to many people for a few reasons. First, all of the weird processes and machines on which we all rely, but of which most of us are ignorant, are always buzzing and humming away, measuring frequencies, determining conductivity and so on. We've become accustomed to...

  • How to Buy Industrial Flow Meters Online

    Largest In Stock Offering   This Sierra Instruments video demonstrates how to easily order our in stock industrial mass flow meters online. We also show you all of the in stock mass flow meters and controllers available on Sierra's online store-all for 1 day delivery. The video also features the newly added in stock vortex flow meters....

Industry Information
View A Video on Level Switches - A Quick Introduction

Level switches, also sometimes called level control switches, are measuring utilities that indicate material levels in storage enclosures or transmission equipment; in some cases they can be used both for level measurement and level control. A level switch indicates these levels by means of an electrical switching action. Some of these devices could also be classified as level sensors or level indicators; those terms are restricted to systems that measure levels but do not control them.

Level switches are applied in a wide range of industries. Some examples include pharmaceutical ingredients processing, for the measurement of bulk quantities of drug ingredients; food and beverage processing, for the monitoring of liquid and powder food item levels during production and packaging; HVAC systems design, for control and level monitoring of oil or refrigerant levels in heating and cooling systems (chambered level switches are often used in boilers); industrial manufacturing, to control potentially hazardous chemicals required in various processing applications; and municipal or industrial water treatment, for the monitoring of wastewater levels. Mechanical level switches, such as float level switches, displacer level switches and rotary tank level indicators, come into direct contact with the materials they measure and can be used as both solid and liquid level switches. Non-mechanical level switches, such as capacitance level sensors, ultrasonic level sensors and optical level switches, do not come into direct contact with the materials they measure.

The basic construction of level switches includes a switching mechanism, a tube and a couple of areas of connection. However, the design varies widely based on the desired application, what materials the switch is going to be used to monitor, the size of the container and other considerations. In particular, designs can vary for simple to complex and can be triggered by pressure, temperature or buoyancy. Additional features of level switch devices include thermal sensors, vibrating sensors and optical sensors, which can be modified to recognize specific substances or to reveal when a certain viscosity, density, opacity or thermal conductivity condition is reached. For construction, level switch manufacturers commonly use materials such as stainless steel, brass and various types of plastics. The two most common plastic materials used include polypropylene and polysulfone, which are available in different colors, and which are good choices for acidic conditions, such as in electroplating and metal cleaning. They are also useful for lower-temperature food processing applications and for general-purpose applications in commercial or consumer appliances and equipment. Brass sensors and switches can be used in petroleum-based liquids; they can be installed in storage tanks of vehicles, generators, and transmission and hydraulic systems as well as in lubrication, recovery, refining and fuel processing equipment. Level switch manufacturers can also cater to specific applications.

While there is a diverse range of devices that fall under the heading of level switches, there are those that are more commonly used for industrial applications. Some of these more popular level switch devices include capacitance level sensors, chambered level switches, displacer level switches, float level switches, optical level switches and ultrasonic level sensors. Capacitance level sensors function to indicate the presence of materials, particularly as they reach a particular level. Capacitance level sensors can be used to measure the level of materials such as aqueous and organic liquids, solids and slurries. Chambered level switches are enclosed in a casing, referred to as a chamber, which surrounds the switch mechanism. Although they are used primarily to monitor the amount of liquids and various other materials in containers, chambered level switches can be used to control the flow of materials into and out of containers as well. Displacer level switches monitor and measure changes in buoyancy force that are placed on a displacer by allowing for adjustments to the level of measured materials.

Level switch configurations range widely in terms of their configurations. In the case of the simplest liquid level switches, the position of a float or buoy is influenced by the level of the materials the float is intended to measure. If the level of the material rises enough, it will cause the float to rise as well. When the float reaches a certain point, it causes an electrical circuit within the level switch to become closed, sending a signal to whatever indicators or control equipment to which the switch may be attached. A similar principle of operation applies also to solid level switches. Spinning rotary level switches, which involve paddles or blades that rotate around an axis, are used to measure the levels of granular solids. Such switches can be placed at different elevations within a storage enclosure. When the spinning of a rotary level switch is interrupted by the presence of a solid, that interruption indicates to control equipment that the level has reached whatever elevation at which the switch has been placed. Level switch design becomes more complicated from there; it can involve the transmission and reflection of ultrasonic waves, the projection of infrared beams and the transmission of radio waves. Correctly pairing a level switch variety with its application results in an effective and accurate materials measurement system. 

Level Switches Suppliers
Level Switches Suppliers
Level Switches Suppliers
Level Switches Suppliers – AMETEK Drexelbrook
Level Switches Suppliers – AMETEK Drexelbrook
Level Switches Suppliers – AMETEK Drexelbrook
Level Switches Suppliers
Level Switches Suppliers
Level Switches Suppliers
Level Switches Suppliers – AMETEK Drexelbrook
Level Switches Suppliers – AMETEK Drexelbrook
Level Switches Suppliers – AMETEK Drexelbrook

Level Switches Types

  • Capacitive level sensors Capacitive level sensors are able to channel or collect a charge of electricity.
  • Chambered level switch designs include encasings, or chambers, that surround the sensor or switch mechanisms. Chambers can be flanged or sealed to offer protection or hermetic air-tightness.
  • Displacer level switch devices are affected by buoyancy force changes on a weight (displacer) heavier than the liquid. Through a spring mechanism, the suspended weight is attached to an attraction sleeve that moves into or out of a magnet field, thus actuating or deactuating the switch.
  • Electric level switches contain open or closed contacts that indicate the presence or absence of liquid.
  • Electromechanical level switches work with a combination of electric and mechanical parts.
  • Float level switch mechanisms can most simply be a rod floating in a liquid that is raised until a pump, an indicator, an alarm or other device is activated. It could also be a mercury switch enclosed in a hinged float, a suspended “bobber” attached to an attraction sleeve that actuates a magnet field or a more complex sensor construction.
  • Hydrostatic level switches are sensitive to the static, or stationary, water pressure acting on them.
  • Level control switches are used specifically for material low control, ensuring that levels remain within a specific, designated range.
  • Level indicators are measurement devices that determine the amount of material that is in a container.
  • Level sensors are measurement devices used to determine the level of materials such as liquids, powders, slurries and granular materials.
  • Liquid level switch constructions monitor the amount of fluid in a vessel. Ultra-low liquid level switches are available to detect very low levels for early indication of a liquid presence and effective use of expensive liquids.
  • Mechanical level switch designs offer versatility and rugged, industrial constructions relying on buoyancy principles and made of floats or displacers, spring mechanisms, attraction sleeves, optional chambers and magnet fields that activate switching mechanisms.
  • Microwave level switches are made up of two separate parts, a transmitter and a receiver. The transmitter emits a burst of energy at approximately 200 times a second toward the receiver; a substance interruption of the microwave between the two devices is the trigger.
  • Multi-point switches can be engineered to provide a number of actuation points.
  • Optical level switches are cost-effective, compact, quickly installable options that contain no moving parts but use LEDs, which transmit infrared light. When a translucent liquid meets the point where the light contacts the prism, the light is reflected into the water and does not allow the photo transistor to energize.
  • Pneumatic level switches are air-pressure activated through valves and amplifiers.
  • Tank level indicators are a type of level switch that is specifically utilized within tanks, which are large vessels used to hold gases or liquids as well as free-flowing solids.
  • Thermal level switches include temperature sensors that provide activation when a heat change occurs as the liquid surrounds them. Some can sense the difference between the temperatures of the air space and the liquid.
  • Two-stage level switch devices are designed with a flood-preventing capability. If liquid reaches the second stage, the switch will turn the pump off and/or sound an alarm.
  • Ultrasonic level sensors utilize high-frequency (above the audible level) pulse wave technology.
  • Vibrating level switches can come with reed, probe or tuning fork sensors, which all have similar constructions of a driver coil that vibrates a paddle. The switch detects a dampening of the vibration when the sensor is surrounded by a substance.

Level Switches Terms

Aperture – The space between contiguous parallel wires, expressed in millimeters.
Buoyancy – An object’s upward force produced by the fluid in which it is fully or partially submerged.

Mercury Switch – A sealed glass tube containing a minimal amount of liquid mercury and two unconnected electrodes that produce electricity flow when the tube is moved past a certain angle so that the liquid metal pools in between the electrodes, making a complete circuit. Once back in the original position, the current stops instantly.

Opacity – The extent to which something is optically non-transmissive; opacity is the opposite of transparency.

Polypropylene or polypropene (PP) – A thermoplastic polymer that is rugged and unusually resistant to many chemical solvents, bases and acids.

Polysulfone or PSU – A polymer thermoplastic material that offers toughness, rigidity, high-strength and transparency, while also maintaining its characteristics between negative 100°C and positive 150°C.

Sluice – A water channel with a gate used to regulate levels and flow rates in rivers, canals and wastewater treatment plants, and to retrieve minerals during the mining process.

Viscosity – The thickness of a liquid, or its resistance to flow.

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